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Author Topic: BAOFENG UV-5R QUESTION  (Read 286 times)

WD4OHD

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BAOFENG UV-5R QUESTION
« on: August 23, 2021, 11:42:57 AM »

It seems the UV-5R won't transmit if the squelch is wide open. Can you program it so that the squelch will be open on 70 cm receive and still transmit on 2m? Haven't been able so far to figure out how to transmit on 2m and listen with the squelch fully open on 70 cm. What am I missing? 
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K1KIM

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Re: BAOFENG UV-5R QUESTION
« Reply #1 on: August 23, 2021, 12:08:00 PM »

The UV-5R should transmit at any squelch setting.

Regarding that radio, there is a Facebook Groups with TONS of info directly related to them.

I don't remember if you can set the squelch differently into the memories for each channel/frequency. Best to re-read the instructions and check it out.

Maybe this post should be in the VHF/UHF forum.
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So Many Toys.......So Little Time!

SOFAR

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Re: BAOFENG UV-5R QUESTION
« Reply #2 on: August 23, 2021, 12:50:13 PM »

It's not a true dual band.

What happens when you press the key while the squelch is open? I would think that it transmits on the frequency  that has the squelch open (receiving).

It can only work one frequency at a time. Although it can monitor two frequencies. Only actively receive on one at a time.
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WD4OHD

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Re: BAOFENG UV-5R QUESTION
« Reply #3 on: August 23, 2021, 05:50:27 PM »

Thanks for the input. Your replies give me something to go on. Looks like I need to explore the manual some more. I've successfully used the Baofeng to work SO-50 a few times, but I'm still pretty new to FM satellite operating.
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N8AUC

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Re: BAOFENG UV-5R QUESTION
« Reply #4 on: September 07, 2021, 05:04:49 PM »

It's not a true dual band.

What happens when you press the key while the squelch is open? I would think that it transmits on the frequency  that has the squelch open (receiving).

It can only work one frequency at a time. Although it can monitor two frequencies. Only actively receive on one at a time.

Well, that's sort of true. The Baofeng UV-5R only has one receiver. And it has only one bank of 128 memories.
In reality it can only monitor one frequency at a time. But when you enable the "dual watch" (TDR - menu item 7), what it does, it is switches rapidly between what shows in side A and what shows in side B of the display. And it does it fast enough that you don't really miss anything. It behaves as though it has two receivers, even though it really doesn't. However, when it's receiving a signal, it seems to suspend the TDR function while it has a signal acquired.

By the way, if you're listening to an FM broadcast station, and activity happens on either side A or side B, it suspends
the broadcast reception and switches to the active frequency. Once the signal goes away on the active frequency for
a few moments, the radio returns to FM broadcast listening.

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N8AUC

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Re: BAOFENG UV-5R QUESTION
« Reply #5 on: September 07, 2021, 05:09:50 PM »

It seems the UV-5R won't transmit if the squelch is wide open. Can you program it so that the squelch will be open on 70 cm receive and still transmit on 2m? Haven't been able so far to figure out how to transmit on 2m and listen with the squelch fully open on 70 cm. What am I missing?

The UV-5R can't do that. As SOFAR mentioned, it's not a true dual band radio. Sure it covers both bands, but it does so
one band at a time.

If you are budget constrained, and can't afford a true dual band, dual receive radio, just buy another UV-5R.
Park one on VHF, and the other on UHF. Just make sure when you do that, the TDR function (menu item 7) is
turned off on both radios.
« Last Edit: September 07, 2021, 05:12:48 PM by N8AUC »
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N4UFO

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Re: BAOFENG UV-5R QUESTION
« Reply #6 on: September 08, 2021, 04:47:21 AM »

just buy another UV-5R.

Except the UV-5R is hit or miss crap when it comes to receiving in the presence of another transmit signal. For satellites, often times it is 2m transmit and a very weak UHF downlink. (thinking of SO-50) Tried a combination of a couple Beofengs years ago and it was terrible. Just noise on the UV-5R I had. Most of these new chinese radios are 'radios on a chip' and don't have the necessary filtering for satellite comms. If I was going to try two radios again, I might use a beofeng on transmit, but not receive. Fortunately I have an IC-W32A, but even then it still has problems with uhf downlinks as the internal filtering is not adequate. I also have a pair of FT-817s, so no worries.  :D
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